Heater fan



FIG. 1 is a top, front, and left side perspective view of a heater fan according to the present invention;

FIG. 2 is a front elevation view of the heater fan shown in FIG. 1 according to the present invention;

FIG. 3 is a back elevation view of the heater fan shown in FIG. 1 according to the present invention;

FIG. 4 is a top plan view of the heater fan shown in FIG. 1 according to the present invention;

FIG. 5 is a bottom plan view of the heater fan shown in FIG. 1 according to the present invention;

FIG. 6 is a left side elevation view of the heater fan shown in FIG. 1 according to the present invention; and,

FIG. 7 is a right side elevation view of the heater fan shown in FIG. 1 according to the present invention. 

The ornamental design for a heater fan, as shown. 